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  9. Muller Norbert, Hartung Jack B., Jessberger Elmar K., Reimold Wolf U. (1990). ('40)Ar-('39)Ar ages of Dellen, Janisjarvi, and Saaksjarvi impact craters. Meteoritics, Vol.25, No.1, P. 1-10
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  14. Jarmo Moilanen (2004). References.
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('40)Ar-('39)Ar- , , - , . 109,6+-1,0 . (7%) ('40)Ar . 698+-22 560+-12 . . ('40)Ar , . 6 (0,3+-0,2)*10('-14) 1 ('2) >~20 . .
(Muller Norbert, Hartung Jack B., Jessberger Elmar K., Reimold Wolf U., 1990).

22 . . 10 , . . , (). CI ( (3-9)*0,001). - Pd/Ir. . CI - 0,0003 0,001, - , . . Os/ . Os OsO[4].
(Schmidt G., Palme H., Kratz K.-L., 1995).

. , - , : - - . , , . . (+ ) , , . ,
(Henkel H., 1996).

Re, Os, Ir, Ru, Pd, Au (), (). . (CI-) 0,5%, - ~0,1%. IIAB IIIAB. Os Ir OsO(,4) . : /, Os Ir - 3*10('-5), Ru - 1,1*10('-3), Rh - 3,8*10('-4), Pd - 2*10('-3), Co - 8, Cr -37.
(Schmidt Gerhard, Palme Herbert, Kratz Karl-Ludwig, 1997)




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